Window-sash lock



March 2 ,19:26.` 1,514,759

T. W. RICKEL WINDOW SASH LOCK GEMM March 2 1926. f

T. w. RICKEI.

WINDOW SASH LOCK Filed August e, 1925 2 Sheets-Sheet 2 a@ mm Cucine,

Patented Mar. 2, 1925.

Unilift; STA'ES TREMONT W. RICKEL, OF MCALLEN, TEXAS.

i WINDOWeSASH LOCK.

Application led August 6, 1925. Serial No. 48,676.

To all whom t 72mg/ concer/n.:

Be it known that I, TnnMoN'r W. RICKEL, a citizen of the United States,residing at llflclillen, in the county of Hidalgo and State of Texas,have invented certain new and useful Improvements in Window-Sash Locks,of which the following is a specification.

This invention relates to improvements in locking devices and hasparticular reference to locks for window sashes and the like.

An important object of the invention is to provide a locking devicewhich will automatically lock a window sash when in the closed position.

A further object of the invention is to provide a locking device of theabove character whereby a window sash may be opened to a predeterminedrestricted position.

Another object of the invention is to provide means in window sashlocking mechanism for entirely opening a window sash when desirable.

Another object of the invention is the provision of sash lockingmechanism of this character which is comparatively simple yet durable inconstruction, and which can be placed upon the market at a relativelylow cost.

Other objects and advantages of this invention will become apparent asthe description progresses.

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate corresponding partsthroughout the same: l

Figure 1 is a fragmentary side elevational view of a window frame andsashes showing my improved apparatus mounted in association therewith,

Figure 2 is a horizontal sectional view of the same, f

y Figure 3 is a vertical sectional view through the window frame andlocking apparatus, with the window sashes in closed position,

Figure 4l is a similar view showing the bottom sash in a partiallyelevated position,

Figure 5 is a central vertical sectional view through my improvedlocking apparatus, and

Figure 6 is a central horizontal sectional view through the same.

In the drawings, wherein for the purpose of illustration is shown thepreferred embodiment of my invention, the numeral 10 generallydesignates a conventional form of window frame having slidably mountedtherein an upper sash 11 comprising a sash frame 12, and a window pane13, and a lower sash of similar construction 11i. This construction isconventional and forms no part of my invention, being merely shown toillustrate the application of my improved mechanism.

Referring now more particularly to the structure embodying my invention,my improved device contemplates the provision of locking mechanism 15adapted to be secured on the top rail of the lower window sash 14co-operating with aV guide frame generally designated by the numeral 16mounted on the side rail of the upper window sash for automaticallylocking the lower sash when it is forced downwardly to a closedposition. The guide frame 16 is preferably of integral constructionembodying a central partition strip 17 reinforced along its outerlongitudinal edge by the provision of a metallic rod and having itsinner edge secured over the greater portion of its length to a baseplate 18. This base plate embodies a longitudinal base strip 19extending substantially the entire length of the center strip 17 and acomparatively short base strip 2O disposed on the opposite side of thecenter strip extending approximately one half the length of this strip.The outer longitudinal edges of the base plate 18 are provided with sidestrips 21yforming a comparatively long and a comparatively short guideway disposed at each side ofthe partition strip 17. Thelower ends of theparallel guide ways are open and likewise the upper end of the shorterguide way. The longer guide way on the other hand, is provided with anend plate 22 forming a stop member so as to permit limited elevation ofthe lower window sash, as will be more completely described as thedescription progresses. This guide frame structure 16 is securelyfastened against the inner side of the upper sash side rail by means ofwood screws 23 inserted through suitable openings in the base plate 18and threadedly engageable with the sash rail, the heads of these screwsbeing preferably countersunk to facilitate the operation of the lockingmechanism.

The lower portion of the center partition strip 17 is recessed adjacentits connecting edge so as to provide an angular slot between thisportion of the partition strip and the base plate. This construction isnecessary to permit the provision ofy a resilient bar member 2lpreferably constructed of spring steel. This member is secured adjacentits upper end to the base plate 18 through the medium of suitablevscrews while its lower extremity normally entends in an outwardlydirected position against the under side of t-he partition strip. Thisspring member 24, extendsacross the entire width ofthe base plate so asto engage the locking mechanism. at either position in the guide frame.

Operatively associated. with the guide frame and. spring member mountedtherein isa locking mechanism. embodying a substantially rectangularcasing 25,. the forward` end of the casing being provided with elevatedside walls as at 2G and. enclosed by the topl plate, 27.. An angular.cover plate 28 is hingedly connected with. the cover plate` 27 so. as toenclose the remainder of the casing, the bottom of the casing seing.

provided with a plurality of openings to receive wood screws 2.9 bymeans of which the; casing is secured. upon. the head railv of thesashframe.` Mounted in the lcentral portion of the casing` and secured to.the b'ottom thereof isL a longitudinally extendinglever sleeve 30.- Thissleeve is secured to thebottom of the casing by extension plates 31formed on the lower. portion thereof, welded or otherwise secured inposition. Longitudinally movable in the sleeve is an angular lockinglever 32 of metallic construction preferably circular in crossseetioniembodying a longitudinal body portion 33-provided with rightangular horizontally extending arm 34 at. its forward. end and acomparatively short verticaly extension 35 at its rear end. rllheforwardextension 34 is directed toward the upper. companion sash ll andyprojects substantially through a longitudinalslot 36 formed in. theinnerVV sidewall of the casing 25'.4 The rear extension 35 is directedupwardly and projects throughV a similar slot 37-` formed in the angularcover. 28, the slots` 36- and 37 being similar; in construction topermit predeterminedmovementi of the locking lever 32. ln ordernthatlthe-slotv BTformed in the angular. cover pla-to2@ may be closed at alltimes, a substantially U-shapel plate 38 is slidably mounted. on: thecasing, this plate being aperturedV to receive the upwardly directedextension 35 so-asto cause the plate to reciprocate with the lockinglever. The lever isactuated through the medium of a knob 39 threadedlyor otherwise secured upon the upper projecting extremity of theextcnsion35.. From the foregoing construction7 it can be readily seen that thelever 32 may be reciproeatedlaterally in the-casing 25, being limited`iin its travel by the longitudinal slots-36fand 37 arranged so as-topermit the forward extension 34- to be actuated from one to the other ofthe parallel. guide ways formed in the guide frame, in the closedposition of the lower sash, immediately below the lower extremity of thebar spring 2l.-.

Means are provided for urging thc lower outwardly extending portion ofthe spring 2l inwardly against the base plate itl so that the springwill disengage the locking lever extension 34e and permit elevation ofthis member. This is accomplished by the provision of a transverselyextending bolt l0 provided on its outermost extremity with an enlargedhead 4l to permit convenient operation thereof. This bolt 4l() issubstantially greater in length than the width of' the casing andprojects through suitable openings formed adjacent the upper edge of theelevated walls thereof. A cotter l2 is secured to the intermediateportion of rthe bolt l() and in the normal position of the bolt contactswith the outer side wall of the casing. This bolt is normally actuatedto an outward posit-ion by the tension of a coiled sp 1ing 43 positionedabout the bolt and interposed between the inner side wall L of thecasing and the cotter l2, causing the bolt to be urged outwardly so asto disengage the inner. end of the-bolt and permit the spring 24 toassume its normal outwardly directed position. lVhen it is desirable toforce the bar. spring 2.4. inwardly against thebase plate 1 8, the bolt40 is forced inwardly against this spring; member causing the inner endof the bolt to contact with the spring 2l and forcing this memberagainst the base plate.

As it is desirable to securely enclose the locking mechanismA to preventtampering therewith, the cover plate 2.7 mounted on the elevated portionof the casing may be formedf integral with thecasing or securelypositioned by welding or in any desirable manner. The angular swingingcover plate 28 is provided with side plates perforated adjacent theouter extremity and adapted to align with perforations formed in theside walls of the casing 25, this cover being locked in position bymeans of any angular pin del extending through the aligned openingsformed in the cover and easing and securely fastened to the top rail ofthe lower sash frame by a staple l5 or in any suitable manner. Thus itis apparent, that a tightly sealed casing is provided preventing theoperation of the interior locking mechanism by the application of anexterior tool.

lli-operation, it is apparent that the sashes when in their normalclosed positions will be locked, that is, the lower sash cannot. beelevated nor the upper sash lowered. This is brought about by the normalpositions of the locking lever extension 3d and the bar spring 24, thelower extended position of this spring assuming an overhanging positionrelative to the lever extension so that llO the sash frames are lockedin position. To elevate the lower sash, it is necessary to press firmly*upon the bolt causing this member to contact with the lower extendingportion of the spring 24 and urging this member inwardlytoward the uppersash frame so that the extension 34. may be elevated on the outer sideof the spring. lt is to be noted that the end of the extension Bil isspaced from the guide way base plate 18 sufficiently to permitcompression of the bar spring' 24.-, so that when the leat' spring ispressed against the base plate the locking lever extensions may befreely elevated.

Then it is desirable to partially elevate the lower window sash the knob39 mounted on the locking lever is pushed toward the right causing theextension 34 to be in alignment with the right hand guide way. The bolt40' is then forced inwardly so as to Contact with the spring 2aand thelower sash may be elevated. The upward movement of the sash is, however,limited in this guide way as the extension 34 will necessarily contactwith the end plate 22 and prevent elevation of the sash beyond apredetermined height. This is arranged to permit the window to be openedsufficiently for Ventilating purposes but insutcient to permit thepassage ot a persons body so that an intruder could not enter thedwelling. It, on the other hand, it be desirable to elevate the lowersash its full length, the locking lever is actuated to the left, so thatthe extension 311 will be in alignment with the left hand guide way. Asin the first instance, it is then necessary to force thc bar springinwardly by means of the bolt l0 and elevate the lower sash, the lockbolt extension in this instance traveling entirely through the guide wayand permitting the sash to be raised upwardly against the head rail ofthe winddw' Jframe. lt is to be noted that the full length elevation ofthe window sash can only be accomplished by interior operation of thespring bolt 40 so that elevation of the window cannot be accomplished byexterior movement. In order to shift the locking lever extension 3i fromone guide way to the other, it is necessary that this member be loweredbelow the lower extremity of the partition strip l? necessitating therelease of the spring 24 and operation of the bolt, before again raisingthe sash.

From the foregoing structure it is apparent that an apparatus of simpledesign is provided whereby window sash frames will be automaticallylocked against opening movement when returned to their normally closedposition. Elements are provided, however, for releasing the lockingmember so that the window may be opened to a limited position. Themechanism may be furthermore operated so as to permit the entire openingof the window by operation of an element on the interior side thereof sothat unauthorized opening of the window to permit entering is prevented.The device is easily operable and arranged so as to permit convenientoperation of the locking mechanism while moving the window sash.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as the preferred example of the same and thatvarious changes as to the shape, size and arrangement of parts may beAresorted to without departing from the spirit of the invention, or thescope of the subjoined claims.

Having thus described my invention, l claim:

l. A window sash lock comprising, in combination, a locking mechanismadapted to be mounted on the lower sash of a window, a guide frameadapted to be mounted on the upper sash in eo-acting position with thelocking mechanism, a bar spring secured to the lower end ot the guidetrame engageable with the locking mechanism, and means for disengagingthe bar spring from the said locking mechanism.

2. Al' window sash lock comprising, in combination, locking mechanismincluding a easing, a lever movably mounted in the said casing, the saidlever being provided with a horizontal extension, a guide frameembodying a pair of guide ways engageable with the said locking lever, abar spring having its lower end extending outwardly from the guide frameengageable with the locking lever extension, and a transversely slidablebolt mounted in the locking mechanism casing adapted to compress thespring to permit movement of the locking lever.

3. A window sash lock comprising, in combination, locking mechanismincluding a rectangular casing, means for securing the said casing uponthe lower window sash, a locking lever movably mounted in the saidcasing, the said locking` lever having a horizontal extension formed onone end and a vertical operating extension on the opposite end, a guide'trame mounted on the upper window sash in co-acting relation with thelocking mechanism, the said guide trame embodying a guide way enclosedat one end to permit restricted movement of the lower sash, and an openguide way to permit unrestricted movement of the sash, the saidhorizontal extension ot the locking lever being movable in the saidguide ways, a bar spring secured to the said guide frame adapted tonormally engage the locking lever extension against elevated movement ofthe lower sash, and i means mounted Von the locking mechanism casing forreleasing the said spring to permit movement of the sashes.

Ll. In combination with a Window'frame including an upper sash, and alower sash, a sash look comprising, a looking mechanism including` arectangular easing, means ,tor securing; the said easing` upon thelovcer sash, an angular locking lever slirlably mounlerlL in the saideasing` having` a horizontal extension, and a spring` release bolttransversely sliclable in the saidL easing; a guide frame seeurerl tothe upper sash in eo-aeting` relation with the locking; mechanismembodying, a guide Way )roviflecl with a step member, and an open guideWay, the horizontal extension o'l the lookingr lever being slidablymovable in the said guide frame, and resilient bar spring secured to theguide 'frame having itsv lower end normally extending; outwardly so asto engage the horizontal extension of the looking lever, thisspringbeing` movable through the medium of the transverse spring` boltto release the locking; lever extension and )ermit movement of thesashes.

5. A Window sash look Comprising, a movable looking` element, a guieeframe operatively associated with the locking* element, a resilienteriasinnT member mounteir in the lower portion of the guide 'frameengageable with the looking)` element, and means for clisengaging theresilient member so as to release the looking,v element.

ln testimony whereof l alli-3: my signature.

TREMONT lV. ltlClili.

